package cn.tedu.sp06.controller;

import cn.tedu.sp01.pojo.Item;
import cn.tedu.sp01.pojo.Order;
import cn.tedu.sp01.pojo.User;
import cn.tedu.sp01.web.util.JsonResult;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;

import java.util.List;

@RestController
@Slf4j
public class RibbonController {
    @Autowired
    private RestTemplate rt;

    //获取商品列表
    @HystrixCommand(fallbackMethod = "getItemsFB")
    @GetMapping("/item-service/{orderId}")
    public JsonResult<List<Item>> getItem(@PathVariable String orderId){
        //调用远程的商品服务，获取商品列表  http://localhost:8001/{oderId}
        //{1} - RestTemplate 定义占位符格式
        //第三个参数是对占位符进行填充的数据
        return rt.getForObject("http://item-service/{1}",
                JsonResult.class,
                orderId);
    }


    //减少商品库存
    @HystrixCommand(fallbackMethod = "decreaseNumberFB")
    @PostMapping("/item-service/decreasNumber")
    public JsonResult<?> decreaseNumber(@RequestBody List<Item> items){
        //调用路径：http://localhost:8001/decreaseNumber
        return rt.postForObject(
                "http://item-service/decreaseNumber",
                items,
                JsonResult.class);
    }

    //用户
    @HystrixCommand(fallbackMethod = "getUserFB")
    @GetMapping("/user-service/{userId}")
    public JsonResult<User> getUser(@PathVariable Integer userId) {
        return rt.getForObject(
                "http://user-service/{1}",
                JsonResult.class,
                userId);
    }

    @HystrixCommand(fallbackMethod = "addScoreFB")
    @GetMapping("/user-service/{userId}/score")
    public JsonResult addScore(
            @PathVariable Integer userId, Integer score) {
        return rt.getForObject(
                "http://user-service/{1}/score?score={2}",
                JsonResult.class,
                userId,
                score);
    }

    //订单
    @HystrixCommand(fallbackMethod = "getOrderFB")
    @GetMapping("/order-service/{orderId}")
    public JsonResult<Order> getOrder(@PathVariable String orderId) {
        return rt.getForObject(
                "http://order-service/{1}",
                JsonResult.class,
                orderId);
    }

    @HystrixCommand(fallbackMethod = "addOrderFB")
    @GetMapping("/order-service")
    public JsonResult addOrder() {
        return rt.getForObject(
                "http://order-servic/",
                JsonResult.class);
    }

    //------------------------------------------

    public JsonResult<List<Item>> getItemsFB(@PathVariable String orderId){
       return JsonResult.err().msg("获取商品列表失败");
    }

    public JsonResult<?> decreaseNumberFB(@RequestBody List<Item> items){
        return JsonResult.err().msg("减少商品库存失败");
    }

    public JsonResult<User> getUserFB(@PathVariable Integer userId) {
        return JsonResult.err().msg("获取用户");
    }

    public JsonResult addScoreFB(
            @PathVariable Integer userId, Integer score) {
        return JsonResult.err().msg("增加积分失败");
    }

    //订单

    public JsonResult<Order> getOrderFB(@PathVariable String orderId) {
        return JsonResult.err().msg("获取订单失败");
    }

    public JsonResult addOrderFB() {
        return JsonResult.err().msg("添加订单失败");
    }
}
